NOS Autolite 865DP4 Spark Plugs – Resistor Type – USA Made

$21.99

type: Unknown Type
Vendor: CorvairFarmer

Description:

For sale: A boxed set of 4 NOS Autolite 865DP4 spark plugs, resistor-style and proudly made in the USA. These plugs replace AC R43LTS, Champion RZN12Y, and Motorcraft AWRF42 — ideal for late 1980s–1990s GM V6 and V8 applications. Perfect for restorers, collectors, or anyone seeking period-correct ignition components.

🔍 Part Number Details

  • Primary Part Number: Autolite 865DP4

  • Type: Resistor-style spark plug (DP4 series)

  • Packaging: Box of 4 plugs

  • Branding: Autolite / Fram / Allied-Signal

  • Country of Origin: Made in the USA 🇺🇸


🔁 Cross Reference Equivalents

Brand Equivalent Plug
AC Delco R43LTS
Champion RZN12Y
Motorcraft AWRF42
NGK BPR5EY (approximate)
Bosch WR9LC+ (approximate)

Always confirm thread size, reach, and heat range for exact compatibility.


🚗 Fitment Examples

Autolite 865DP4 plugs were commonly used in:

  • GM 4.3L V6 and 5.0L/5.7L V8 engines (late 1980s–1990s)

  • Chevrolet C/K trucks, Caprice, Camaro, and Impala

  • Pontiac Firebird and Bonneville

  • Buick Roadmaster and LeSabre

  • Marine and industrial GM V8 platforms

These plugs are ideal for restorers and tuners seeking period-correct ignition components for late-model GM builds.

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